diff --git a/utils/gn/secondary/clang/test/BUILD.gn b/utils/gn/secondary/clang/test/BUILD.gn
index c19432cdb26..36b588dc511 100644
--- a/utils/gn/secondary/clang/test/BUILD.gn
+++ b/utils/gn/secondary/clang/test/BUILD.gn
@@ -59,6 +59,7 @@ write_lit_config("lit_site_cfg") {
     "ENABLE_BACKTRACES=1",
     "LLVM_ENABLE_NEW_PASS_MANAGER=1",
     "LLVM_HOST_TRIPLE=$llvm_current_triple",
+    "LLVM_LIT_ERRC_MESSAGES=",
     "LLVM_LIT_TOOLS_DIR=",  # Intentionally empty, matches cmake build.
     "LLVM_USE_SANITIZER=",
     "Python3_EXECUTABLE=$python_path",
diff --git a/utils/gn/secondary/lld/test/BUILD.gn b/utils/gn/secondary/lld/test/BUILD.gn
index dcdab2006dc..007c1f79963 100644
--- a/utils/gn/secondary/lld/test/BUILD.gn
+++ b/utils/gn/secondary/lld/test/BUILD.gn
@@ -35,7 +35,10 @@ write_lit_cfg("lit_site_cfg") {
   input = "//lld/test/lit.site.cfg.py.in"
   output = lld_lit_site_cfg_file
 
-  extra_values = [ "LLD_DEFAULT_LD_LLD_IS_MINGW=0" ]  # Must be 0.
+  extra_values = [
+    "LLD_DEFAULT_LD_LLD_IS_MINGW=0", # Must be 0.
+    "LLVM_LIT_ERRC_MESSAGES=",
+  ]
 
   if (llvm_enable_dia_sdk) {
     extra_values += [ "LLVM_ENABLE_DIA_SDK=1" ]
diff --git a/utils/gn/secondary/llvm/test/BUILD.gn b/utils/gn/secondary/llvm/test/BUILD.gn
index 6ef8b7c8969..4eb96e37497 100644
--- a/utils/gn/secondary/llvm/test/BUILD.gn
+++ b/utils/gn/secondary/llvm/test/BUILD.gn
@@ -61,6 +61,7 @@ write_lit_config("lit_site_cfg") {
     "LLVM_HOST_TRIPLE=$llvm_current_triple",
     "LLVM_LIBS_DIR=" + rebase_path("$root_out_dir/lib", dir),
     "LLVM_LINK_LLVM_DYLIB=0",
+    "LLVM_LIT_ERRC_MESSAGES=",
     "LLVM_LIT_TOOLS_DIR=",  # Intentionally empty, matches cmake build.
     "LLVM_NATIVE_ARCH=$native_target",
     "LLVM_USE_INTEL_JITEVENTS=0",